The Cardiovascular system

Which of the following is a characteristic of a capillary?

• have large lumen

• have elastic fibers

• thick walled tubes

• one cell thick

The Flow of blood between the heart and lungs.

• pulmonary circulation

• system circulation

• systematic circulation

• interior circulation

The transport of materials in living things is called

• blood

• circulation

• hemoglobin

• plasma

In humans, ciruclation is carried out by the liquid called

• blood

• plasma

• hemoglobin

• heart

Blood is pumped by the

• liver

• kidney

• heart

• lungs

Blood pick up _________ from the cells.

• capillaries

• red blood cells

• white blood cells

• waste material

Blood is carried away from the heart by

• veins

• arteries

• venules

• capillaries

Blood is carried back to the heart by

• veins

• arteries

• arterioles

• capillaries

Arteries and veins are connected by tiny blood vessels called

• veins

• arterioles

• arteries

• capillaries

The substance in the blood that gives its red color is

• hemoglobin

• plasma

• white blood cells

• oxygen